(Designed for All Levels) Matthew Wood teaches the old energetic system of nineteenth century doctors that was based on the simple conditions of the tissues irritation, relaxation, constriction, atrophy, depression and torpor (stagnation), along with herbal remedies to address these states, including yellow dock root, rhubarb, yarrow, lobelia, agrimony, tulip poplar, sumac, sweetfern, cranesbill, burdock, angelica, bayberry, cayenne, sage, goldenseal and dandelion.